/* Copyright (C) 2011 rccloud.com All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.rccloud.gwtproxyc.server;

import java.util.HashMap;
import java.util.Map;

/**
 * Proxy resolver factory, it's for caching the resolving results.
 */
class ProxyResolverFactory {

	private static Map<Class<?>, ProxyResolver> resolverMap = new HashMap<Class<?>, ProxyResolver>();

	/**
	 * Get the resolver, and put it in a cache.
	 * 
	 * @param proxyClass
	 *            GWT proxy class
	 * @return the resolver
	 */
	public static ProxyResolver getResolver(Class<?> proxyClass) {
		if (!resolverMap.containsKey(proxyClass)) {
			resolverMap.put(proxyClass, new ProxyResolver(proxyClass));
		}
		return resolverMap.get(proxyClass);
	}

	/**
	 * Clear the cache
	 */
	public static void clearCache() {
		resolverMap.clear();
	}
}
